AlorAir Basement/Crawl Space Dehumidifiers 198 PPD (Saturation), 90 PPD (AHAM), Energy Star Listed, 5 Years Warranty, Auto Defrosting System, cETL, up to 2,600 sq. ft, Optional Remote Monitoring

Model : Sentinel HD90

4.9 Average

$1,047.11 List Price: $1,250.00


Compared to other similar products on the market, Sentinel HD90 has always been more advantageous due to its heavy-duty components and energy-saving feature. It has a powerful capability of dehumidification and can be strategically ducted in a different room/area.

Highlights: ENERGY STAR certified/ 5 Years Warranty/ MERV-1 Filter/ Automatic Defrost/ cETL certified/ Optional Remote Control


Product Overview

AlorAir Sentinel HD90 Conventional Dehumidifier 
This is one of the most reliable dehumidifiers on the market. While it is also applicable for commercial use such as in office spaces, it is being widely used for basements and crawl spaces. This is mostly due to its stable and steady performance without incurring too much noise and electrical consumption. Homeowners are able to save while enjoying its dehumidifying capabilities.

Especially in a home with children and the elderly, it is important to maintain the safest indoor air quality to support their fragile health. This can be done by the use of a reliable dehumidifier. It will do its job of extracting excess moisture which is the reason for having a habitable environment for molds and other harmful entities that bring allergies, skin irritations, respiratory issues, and other immune-related diseases.

Compared to other similar products in the market, the AlorAir Sentinel HD90 Conventional Dehumidifier has always been more advantageous because of its heavy-duty features. It has a powerful dehumidification capacity and can be strategically ducted in a different room/area.



· Built with an automatic defrosting system
· Energy Star certified
· Has a high COP
· Has a remote control
· Gravity drained
· Equipped with a rare alloy tube evaporator
· Ergonomically designed for easy dismantling
· Has a rotary compressor
· Proven to extract the maximum amount of excess moisture even in environments with low humidity
· Has an intelligent power-off memory protection
· Has a compact design
· Supply duct optional Application



1. Protection from disease - Harmful microorganisms live in high-humidity environments and damage the surfaces they reach. Not properly extracted and prevented, they can cause various health risks such as allergies, skin irritation, respiratory illnesses, and immune-related diseases. Another dangerous group that poses health risks is mosquitoes. They also thrive in moist places. They can infect people with nasty diseases like dengue fever or malaria. Fortunately, a dehumidifier helps prevent their growth and harmful effects. 
2. Cost-effective: Buying a dehumidifier is one of the best investments a person can make. It's designed to function optimally and is energy-saving. Plus, it can prevent damage caused by excessive moisture in the long run.
3. Optimal remediation support - Users can be sure they'll get maximum performance to facilitate their remediation work. It's portable, durable, and reliable in the remediation of severe water damage.
4. Protecting property from damage - The place will be inhospitable to harmful microorganisms that could attack your valuables. 
5. Priority safety by preventing structural problems - can primarily prevent accidents if you have a dehumidifier at home that prevents excess moisture from weakening the structure and foundation of your home.  
6. Pleasant workplace - It's been proven that a workplace is positively affected by fresh air to breathe. When you provide perfect ventilation, your employees will be optimally productive and benefit from each other's motivated work ethic.  
More so, all of our dehumidifiers come with a reliable warranty, which you can also read about on this website. If you've any further questions, don't hesitate to contact our customer service representatives. We'll be happy to help you decide on your dehumidifier needs.

Power 115 V/60 Hz
Current 5.56 A
COP 2.69 L/Kwh
Size For Up to 2,600 Sq.Ft.
Filter Merv-1 (Optional MERV-8 Filter)
Air flow 210 CFM,350 CMH
Sound Pressure Level <58 dBA
Refrigerant R410A
Draining Gravity Draining
Defrosting Control System Automatic Defrosting
Functioning Temperature Range 33.8~104℉
Functioning Humidity Range 36~90%
Capacity115V(80ºF-60%) 90 Pints
Weight 67.2 Ibs (30.5 kg)
Dim(LxWxH) 23.2 x 15.2 x 17.7 in
Shipping Dim (L x W x H) 28.9 x 19.3 x 20.4 in
Loading Quantity 20': 144 Sets; 40': 292 Sets; 40'HQ: 365 Sets

AlorAir Sentinel HD90 Conventional Dehumidifier
Compared to other similar products in the market, the AlorAir Sentinel HD90 Conventional Dehumidifier has always been more advantageous because of its heavy-duty features. It has a powerful dehumidification capacity and can be strategically ducted in a different room/area.

Because of its high customer rating, not only is it being chosen for residential use, but also for commercial restoration projects

With its ergonomic design that eases its ability for frequent transportation and usage, its sturdy housing that expertly protects its internal components, and its overall caliber, the AlorAir Storm Ultra LGR Commercial-Grade Dehumidifier has been one of the top choices for various applications such as:

· Flood restoration
· Furniture Drying
· Carpet Drying
· Laundry Drying
· Painting Projects
· Humidity Control for: Garages/Warehouses/Basements/Crawl Spaces/Shops/Restaurants/Bars/Museums/Sports Hall/Computer Rooms/Cellars/Offices/Laboratories/Food Storage

Proper Use and Maintenance
Every dehumidifier needs proper usage and maintenance to support its long-lasting capability. Here are some safety tips for using and maintaining it:
· Before using it, keep it steady in an upright position for about 30 minutes to allow the refrigerant and other internal components to settle
· If the unit is newly delivered, let it settle for about 12 hours before using it
· Make sure that your desired area is well-sealed by either shutting all windows, vents or using other barriers
· It must be connected to a grounded electric source to avoid accidents and damage
· Make sure you have the right power supply to avoid electrical issues
· It is not suggestible to use an extension cord as well as a power adaptor
· Use the control panel or remote to set your desired level of humidity
· The surface in which it is set to operate must be leveled and steady
· Do not position the discharge and inlet onto a wall
· Never tamper with the internal components while the unit is running
· Always maintain a 6ft. distance from any form of obstruction
· Avoid deploying it in areas with a high amount of corrosive materials
· Make sure to properly unplug it before deploying it to another area
· Never leave it plugged when not in use
· When cleaning, use a damp cloth dipped in mild soap solution in wiping its exterior
· Remember to check the inlet and outlet for any blockages
· Annually check up the coils for maintenance
· You may use a foaming coil cleaner for cleaning the coils
· Confirm that the cords are cleaned from any debris and are properly wrapped and secured for storage
· Make sure to properly dry it before storing
· If the unit gets flooded, make sure you completely let it dry by carefully opening it before attempting to reconnect it
· Seek professional help for other complex issues
· Never use the unit as a support or stepping stool when reaching high items

Make sure to read the manual and all other guides before using your dehumidifier, or any product for that matter. It is always better to be equipped with all essential information beforehand to reduce the risk of accidents and mishaps.

Reviews & Questions

98% of customers recommend this item

95 Ratings
4.9 Average
5 Stars
500% Complete
4 Stars
400% Complete
3 Stars
NAN% Complete
2 Stars
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1 Stars
NAN% Complete
By 'Natalie Miller', Reviewed on August 04, 2021
Our garage always smells because we don't have a good ventilation system. Especially on rainy or snowy days, the garage is always humid. I did a lot of research before buying this unit and finally got this dehumidifier. Fortunately, the machine did not disappoint me. It quickly dried out my garage and got rid of the smell of mold. I'm so happy! Besides, this machine is easy to install, and I can use it immediately even if I know nothing about mechanical products. I will definitely recommend this product to my friends!
well done
By 'Jude Johnson', Reviewed on July 31, 2021
We live in a coastal town and have experienced severe mold problems in our house. We noticed our house has a mildew smell in the winter and has mold growing in the basement. So I purchased this one. It arrived quickly and was easy to set up. And when I run this for a few hours I notice it dries out and feels fresh afterward. It amazes me how much water it collects. Very happy with that!
By 'Quentin Jones', Reviewed on July 26, 2021
Received the dehumidifier within 5 days, I'm very happy to have it. The unit works well, is very quiet, and really keeps our basement humidity down. We started at like 79% humidity, and we are now at about 50%. It’s nice and compact. Doesn’t take up much room. Definitely worth the money so far! GREAT EXPERIENCE HIGHLY RECOMMEND THIS SELLER.
By 'Sophia Hill', Reviewed on July 07, 2021
This product deserves the title of Energy Star. This dehumidifier will quickly remove moisture from the air without running up my utility bill. In addition, the machine is compatible with Remote Control. Therefore, it is really convenient for me to control.
Just what I needed
By 'Muhamed Wickens', Reviewed on April 15, 2021
We live in a high humidity state and had our basement in a desired relative humidity percentage in a short time. The unit automatically shuts down in the reservoir is full and it is very simple to convert and use with a drain as well. The unit is sleek in design and quieter than I expected.
Improving air quality
By 'Marwan Blair', Reviewed on March 29, 2021
This is a very perfect machine that allows me to breathe clean and dry air every day. is rainy in autumn. wake up every morning, my bedding and body feel sticky. With this machine, the air in the room becomes refreshed and comfortable. like feel full energetic, perfect
Easy to use, get the job done!
By 'Patsy Fields', Reviewed on March 15, 2021
The air was immediately dehumidified on the first day of arrival. My basement smelled much better after a few days! The machine itself is not as loud as other dehumidifiers I have heard, but it does make some noise. It is easy to operate, it has only a few buttons, I only set it once, and it has been running for me for several weeks without any adjustments. So far, so good! This is a high-quality product and definitely worth the money.
Good product! Compact and quiet
By 'Ashraf Chan', Reviewed on March 08, 2021
So far, so good. It works normally, runs quietly and drains well. It keeps our basement dry and we are happy to find this product because there are not many sophisticated dehumidifiers on the market today. If you need a good dehumidifier, this is a good choice! I would recommend this brand and model!
Amazing product, quiet, efficient and easy to use!
By 'Yash Soto', Reviewed on March 01, 2021
The product is very good and works as expected. This dehumidifier can definitely take away the moisture in the air in the basement. Once it reaches the humidity level I selected, it will shut down and continue to work when the humidity changes. It is compact, quiet and easy to set up. If you need a dehumidifier, it is definitely worth it.
I highly recommend this product!
By 'Felicity Hogan', Reviewed on February 22, 2021
We recently purchased it and it has been working well so far. It is very easy to install, especially with a drain hose. We are worried that it may be too small for our basement, but it has reduced the humidity in our basement, and we can feel the obvious difference.


Can you hook up the intake to a duct?

Eli on November 18, 2021

1 Answer

Answered by Alorair
Yes, we have duct kits for the inlet. Just list the demands clearly during the ordering process.
Is the condensate pump included?

Ada on November 17, 2021

1 Answer

Answered by Alorair
No, this one does not have a pump inside, but HDi90 has a pump inside.
Does this dehumidifier solve the damp odor problem in the basement?

Edwiin on November 15, 2021

1 Answer

Answered by AlorAir
Yes, this dehumidifier can help you with damp odor problems in your basement.
Can it be started automatically

Mark on November 11, 2021

1 Answer

Answered by Alorair
Can automatically start the dehumidifier
Can this unit withstand flooding in the crawlspace? Some of your units say they will. I was curious whether this one does.

Lisa on October 28, 2021

1 Answer

Answered by Alorair
Our units can NOT withstand flooding in the crawlspace. You will need to place it on a dry surface.

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